Global Patent Index - EP 0257905 B1

EP 0257905 B1 19920520 - AN IMPROVED PUMP ASSEMBLY FOR A NUCLEAR REACTOR

Title (en)

AN IMPROVED PUMP ASSEMBLY FOR A NUCLEAR REACTOR

Publication

EP 0257905 B1 19920520 (EN)

Application

EP 87307081 A 19870810

Priority

US 89602886 A 19860813

Abstract (en)

[origin: EP0257905A2] A pump assembly (18) is disclosed for transferring the internal energy from a second or intermediate liquid metal to a first or primary liquid metal. The pump assembly comprises a pump duct (72) for receiving the first liquid metal and a primary generator duct (70) for receiving a first flow of the pumped, intermediate liquid metal. A first or main (76) means in the illustrative form of a plurality of field coils generates and applies a main magnetic field through the pump and the primary generator ducts, whereby a first current flow is established through the pump and primary generator ducts and the primary liquid metal is pumped. An auxiliary generator duct (102) receives a second flow of the pumped, intermediate liquid metal. An auxiliary means (96), illustratively in the form of permanent magnets, generates an auxiliary magnetic field through the auxiliary generator duct, whereby the interaction of the auxiliary magnetic field and the second flow of the pumped, intermediate liquid metal generates a second current flow to excite the field coils.

IPC 1-7

G21C 15/24; H02K 44/04

IPC 8 full level

G21C 1/02 (2006.01); G21C 15/14 (2006.01); G21C 15/24 (2006.01); G21C 15/247 (2006.01); H02K 44/00 (2006.01); H02K 44/02 (2006.01); H02K 44/04 (2006.01)

CPC (source: EP US)

G21C 15/247 (2013.01 - EP US); H02K 44/00 (2013.01 - EP US); H02K 44/04 (2013.01 - EP US); Y02E 30/30 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

EP 0257905 A2 19880302; EP 0257905 A3 19890809; EP 0257905 B1 19920520; DE 3779220 D1 19920625; JP H0797148 B2 19951018; JP S63101795 A 19880506; US 4753576 A 19880628

DOCDB simple family (application)

EP 87307081 A 19870810; DE 3779220 T 19870810; JP 18649087 A 19870724; US 89602886 A 19860813